Pith Number

pith:VOLLRFHG

pith:2024:VOLLRFHGSENIE2E7VGXV2LSNAI

not attested not anchored not stored refs pending

Key varieties for prime $\mathbb{Q}$-Fano threefolds defined by Jordan algebras of cubic forms. Part II

Hiromichi Takagi

arxiv:2403.15991 v2 · 2024-03-24 · math.AG · math.RA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VOLLRFHGSENIE2E7VGXV2LSNAI}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Key variety construction of Sarkisov links for prime $\mathbb{Q}$-Fano threefolds of codimension four associated to Type ${\rm II}_{2}$ projections

Receipt and verification

First computed	2026-07-05T08:02:25.509045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab96b894e6911a82689fa9af5d2e4d0203e4eca5b940aa0ef033f3951f6ecc40

Aliases

arxiv: 2403.15991 · arxiv_version: 2403.15991v2 · doi: 10.48550/arxiv.2403.15991 · pith_short_12: VOLLRFHGSENI · pith_short_16: VOLLRFHGSENIE2E7 · pith_short_8: VOLLRFHG

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/VOLLRFHGSENIE2E7VGXV2LSNAI \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: ab96b894e6911a82689fa9af5d2e4d0203e4eca5b940aa0ef033f3951f6ecc40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e308fbeb8a3d1ac5f5cae6d63047e1e49942e5b9f6ca5f08bf63dd857b090a9",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2024-03-24T03:02:58Z",
    "title_canon_sha256": "2f74ede05b6fca4a2a029a1367d57ae72f67982dcc3b13c74fa2e97c8b273d8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2403.15991",
    "kind": "arxiv",
    "version": 2
  }
}